Finding the Third Proportional to 90,231.50 and 126,145.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,231.50 : 126,145.25 = 126,145.25 : x
2. Step 2: Convert to fraction form
   90,231.50/126,145.25 = 126,145.25/x
3. Step 3: Cross multiply
   90,231.50x = 126,145.25 × 126,145.25
4. Step 4: Simplify right side
   90,231.50x = 15,912,624,097.56
5. Step 5: Solve for x
   x = 15,912,624,097.56/90,231.50
6. Step 6: Final answer
   x = 176,353.31